脊髓血管母细胞瘤的MR诊断

目的：探讨脊髓血管母细胞瘤的MRI表现及其鉴别诊断。方法：回顾性分析12例经手术和病理证实的脊髓血管母细胞瘤患者的临床和MRI资料。所有病例均行MRI平扫及增强扫描。结果：本组12例患者均经手术及病理证实。8例发生在颈段脊髓，3例发生于颈胸段脊髓，1例发生于胸段脊髓。其中1例呈多发，同时累及小脑半球和颈髓。肿瘤实质最大1.5cm，最小3mm，3例为局部囊变，9例为邻近脊髓空洞积水，2例伴有明显的水肿。累及范围为1个椎体区段至10个椎体区段。T1WI显示病变囊影呈脑脊液样低信号，结节与脊髓相比，呈等或略低信号。其中9例结节位于脊髓背侧，3例位于脊髓中央区域。9例囊肿及空洞积水周围的脊髓未见明显水肿存在。3例邻近脊髓水肿呈T1 W略低信号，T2 W呈较高信号。1例同时伴有小脑血管母细胞瘤。T2 WI囊性病变呈脑脊液样高信号，结节呈略高信号，囊肿周围水肿区呈较高信号，其中1例结节内见血管流空信号。T1WI增强扫描12例结节病灶及伴有小脑病灶的均显著增强。结论：脊髓血管母细胞瘤在MR图像上具有一定的形态及信号特点，对于术前正确诊断具有一定意义。

MR diagnosis of spinal cord hemangioblastoma

Objective：To study the spinal cord hemangioblastoma MRI manifestations and differential diagnosis. Methods：A retrospective analysis of clincal and MRI material of 12 patients with surgery and pathology confirmed spinal cord hemangioblastoma were performed. All cases were performed MRI flat sweep and enhancement scanning. Results：All the 12 cases were confirmed by surgery and pathology,8 cases located in neck of spinal cord,3 cases lo-cated in neck chest of spinal cord,1 case occurred at chest of spinal cord,including 1 case of multiple,and at the same time,involving the cerebellar hemisphere and neck pulp. Tumor essence maximum 1. 5cm,minimum 3mm,3 ca-ses of local sac change,9 cases of spinal cord for nearby empty water,2 patients with obvious edema. The scope for a vertebral body section to 10 a vertebral body section. T1WI display lesions capsule shadow in cerebrospinal fluid sam-ple low signal,nodules compared with spinal cord,show or slightly low signal. 9 cases of nodules located in spinal cord dorsal and 3 cases of spinal cord located in the central area;9 cases of cyst and empty water around the spinal cord no marked edema;3 cases of nearby spinal edema was T1W slightly low signal,T2W higher signal. 1 case at the same time companion had little cerebrovascular mother cell tumor. T2WI cystic lesion in cerebrospinal fluid sample high signal,the nodules were slightly high signal,cyst surrounding edema,area was higher signal,including 1 case nodules seen in blood vessels empty signal. T1WI enhancement scanning in 12 cases with nodular lesions and cerebellum le-sions were significantly enhanced. Conclusion：Spinal cord hemangioblastoma in MR image has a certain form and sig-nal characteristics,for preoperative diagnosis is of great significance.